Abstract: A current sensor includes units each of which has a bus bar through which current flows, a magnetic sensor facing one of plate surfaces of the bus bar, a shield facing the other plate surface. The units have a large-current unit and a small-current unit. A first distance between the bus bar and the magnetic sensor in a normal direction of the plate surfaces of the bus bar is the same as a distance L1A of the large-current unit and a distance L1B of the small-current unit. Since, as for a second distance between the bus bar and a base of the shield, a distance L2A of the large-current unit is larger than a distance L2B of the small-current unit, a measurement range of the large-current unit is widened and a measurement error due to magnetic saturation of the shield is suppressed.

Abstract: A quadrupole mass filter (50) has a main-rod section (500) including rod electrodes arranged around a central axis C and a first pre-rod section (501) including pre-rod electrodes. Along with an RF voltage having a frequency corresponding to the m/z of an ion, DC voltage is applied to the pre-rod electrodes. The DC voltage and the amplitude of the RF voltage are determined so that a-value and q-value substantially satisfy the conditions that a?0, (???x·?)N={(½)+m}? and ?y·?·N={(½)+n}?, where m, n and N are natural numbers, with the X-axis direction connecting the centers of two rod electrodes facing each other across the central axis in a plane perpendicular to the central axis, the Y-axis direction connecting the centers of the other two rod electrodes in the plane, and ?x and ?y representing ? values (0<?<1) related to a secular oscillation of an ion in the X and Y directions, respectively.

Abstract: A current sensor has a chassis, a magnetism detection element, and a bus bar through which a current under measurement flows. The current sensor is mounted on a circuit board in a state in which the chassis is inserted into an opening formed in the circuit board with current paths provided on a mounting surface and the bus bar is connected to the current paths. The bus bar has an incorporation portion placed in the interior of the chassis as well as externally connected portions extending from both ends of the incorporation portion, one from each side, toward the outside of the chassis. The externally connected portions are positioned above the bottom surface of the chassis in the up-down direction. The incorporation portion has an underneath portion positioned below the externally connected portions in the up-down direction.

Abstract: A manipulation system includes a sample stage configured such that a minute object is placed thereon, a first manipulator including a first pipette for holding the minute object, a second manipulator including a second pipette for manipulating the minute object that is held to the first pipette, an imaging unit configured to image the minute object, and a control unit configured to control the sample stage, the first pipette, the second pipette, and the imaging unit. The control unit moves the second pipette to a direction approaching the sample stage from the upper side of the minute object, at a position where the second pipette overlaps with the minute object and is away from the center of the minute object in a direction orthogonal to the extending direction of the second pipette, when viewed from the direction perpendicular to the sample stage.

Abstract: A current sensor has a first bus bar, a second bus bar, and a third bus bar, which are formed in a plate shape, and also has a first magnetic sensing unit, a second magnetic sensing unit, and a third magnetic sensing unit placed so as to respectively face the first bus bar, second bus bar, and third bus bar. Each bus bar has a narrow-width portion with the relevant magnetic sensing unit placed so as to face it, and also has two wide-width portions. The second magnetic sensing unit, which senses a magnetic field generated from the second bus bar, and the third magnetic sensing unit, which senses a magnetic field generated from the third bus bar, are offset from their relevant narrow-width portions toward opposite sides in the Y-axis direction, when viewed along the Z-axis direction.

Abstract: For a low-cost, high-accuracy tuning of the voltages applied to electrodes in a mass spectrometer, a chromatograph mass spectrometer (1) includes: a medium supplier (11) which supplies a medium as a mobile phase or carrier gas; a passage (15) which introduces, into the mass spectrometer, the medium supplied from the medium supplier; an ionizer (211) which ionizes the medium together with a substance coming from a member forming the passage into the medium; a measurement executer (25, 26, 43) which performs a mass separation and a measurement of a specific ion, using multiple measurement conditions which differ from each other in the value of voltage applied to at least one electrode included in one or more electrodes in the mass spectrometer; and a voltage value determiner (44) which determines the value of voltage applied to each electrode so that the intensity of the ion satisfies a predetermined criterion.

Abstract: A quadrupole mass spectrometer includes a quadrupole mass filter including: a main rod portion including four main rod electrodes; a pre-rod portion including four pre-rod electrodes, where, at an end opposite to the main rod portion, the four pre-rod electrodes are disposed to be aligned on an inscribed circle having the same radius centered on the ion optical axis, and, at the other end facing the main rod portion, two pre-rod electrodes facing each other across the ion optical axis and the other two pre-rod electrodes are disposed to be aligned on an inscribed circle having different radii centered on the ion optical axis; a main voltage applying unit to apply, to each main rod electrodes, a voltage created by superimposing a DC voltage and an RF voltage; and a pre-voltage applying unit to apply an RF voltage having a same frequency as the RF voltage to each pre-rod electrodes.

Abstract: After performing an analysis on a standard sample for a predetermined time, a plurality of ion optical elements such as an ion guide are sequentially selected one by one, and a direct-current voltage having a polarity different from that at the time of analysis is temporarily applied. Meanwhile, intensity data of ions having a specific m/z are continuously collected. After thus collecting the data, the ratio of the ion intensities before and after application of direct-current voltages having different polarities is calculated for each ion optical element, and it is determined whether or not the ratio is equal to or larger than a predetermined threshold value.

Abstract: An information processing apparatus includes a processor configured to: acquire, from results of character recognition performed on a target image including character strings, attribute information indicating an attribute to which a key character string and a value character string belong, the key character string as a character string specified beforehand as a key and the value character string as a character string indicating a value corresponding to the key character string; acquire by using the attribute information the key character string corresponding to the value character string extracted from the results of the character recognition; and output the key character string and the value character string corresponding to the key character string.

Abstract: A single type quadrupole mass spectrometer equipped with an ion source by the ESI method, which is a small device including a vacuum pump having a relatively small evacuation speed. The internal diameter of a desolvation tube for introducing ions from an ionization chamber into a first intermediate vacuum chamber is set to 0.4 mm ?, which is large for a small mass spectrometer. The evacuation speed of a rotary pump is determined so that the product of the cross-sectional opening area of the desolvation tube and the pressure in the first intermediate vacuum chamber falls within a range of 15 to 40 mm2·Pa. This can ensure high detection sensitivity and reduce clogging of the desolvation tube due to droplets. Since the pressure in the first intermediate vacuum chamber does not need to be increased more than necessary, a small rotary pump having a small evacuation speed can be used.

Abstract: An information processing apparatus includes a processor configured to: acquire an image corresponding to a key character string from a target image in response to the key character string that serves as a character string specified beforehand as a key and is acquired from results of character recognition performed on the target image including character strings; extract, by using results of acquiring the image corresponding to the key character string, from the results of the character recognition a value character string that serves as a character string indicating a value corresponding to the key character string; and output the key character string and the value character string corresponding to the key character string.

Abstract: An information processing device includes: a processor configured to: acquire an invoice to be processed; acquire a document related to the invoice; and perform a process of outputting a suggestion as to a predetermined matter that is to be executed next in accordance with an inconsistency between a content described in the invoice and a content described in the document.

Abstract: An information processing apparatus includes a processor configured to present an account title relating to information obtained from a voucher together with related information relating to the account title.

Abstract: A mass spectrometer adopting a configuration of a multi-stage differential evacuation system appropriately performs optimization of a direct-current voltage applied to a plurality of ion optical elements for transporting ions. An auto-tuning controller acquires intensity data of ions derived from a predetermined component while changing a direct-current voltage applied to ion guides and the like, and searches for a direct-current voltage at which the intensity is maximized. When the direct-current voltage applied to a certain ion optical element is changed at the time of automatic adjustment, the direct-current voltage applied to all the ion optical elements thereafter is also changed by the same amount. Since the direct-current voltage difference between two adjacent ion optical elements always changes at only one point, the direct-current potential difference can be determined so as to optimize the ion passage efficiency.

Abstract: An information processing apparatus includes a processor configured to: acquire, from results of character recognition performed on a target image including character strings, attribute information indicating an attribute to which a key character string and a value character string belong, the key character string as a character string specified beforehand as a key and the value character string as a character string indicating a value corresponding to the key character string; acquire by using the attribute information the key character string corresponding to the value character string extracted from the results of the character recognition; and output the key character string and the value character string corresponding to the key character string.

Abstract: An information processing apparatus includes a processor configured to: acquire an image corresponding to a key character string from a target image in response to the key character string that serves as a character string specified beforehand as a key and is acquired from results of character recognition performed on the target image including character strings; extract, by using results of acquiring the image corresponding to the key character string, from the results of the character recognition a value character string that serves as a character string indicating a value corresponding to the key character string; and output the key character string and the value character string corresponding to the key character string.

Abstract: An information processing device includes: a processor configured to: acquire an invoice to be processed; acquire a document related to the invoice; and perform a process of outputting a suggestion as to a predetermined matter that is to be executed next in accordance with an inconsistency between a content described in the invoice and a content described in the document.

Abstract: A quadrupole mass filter includes: four electrodes arranged to surround a central axis and constituting a quadrupole; attachment portions to which a plurality of electrical conductors are attached, at least one of the electrical conductors being arranged at a position that lies in a direction toward an area between each of the adjacent electrodes among the four electrodes, as viewed from the central axis; and a holder having a hollow portion and holding the four electrodes and the plurality of electrical conductors, wherein the electrical conductors are attached to the respective attachment portions and held by the holder with elasticity of a material constituting the electrical conductors.

Abstract: A vacuum chamber 11 for forming a vacuum space has two side walls opposite to each other across an ion beam axis extending within the vacuum space. One of those side walls is openable and closeable. An ion optical element 21 is placed on a base 33, which is located on the bottom surface of the vacuum chamber. A fixation band 213 fixes the ion optical element on the base by holding the element between the base and the fixation band so as to press the element onto the base. A band-catching portion 10d, located on an inside face of a side wall of the vacuum chamber on the opposite side from the openable-and-closeable side wall, catches one end of the fixation band. A band-fixing portion 214, located on the base on the side where the openable-and-closeable side wall is present, fixes the other end of the fixation band to the base.

Abstract: A single type quadrupole mass spectrometer equipped with an ion source by the ESI method, which is a small device including a vacuum pump having a relatively small evacuation speed. The internal diameter of a desolvation tube for introducing ions from an ionization chamber into a first intermediate vacuum chamber is set to 0.4 mm ?, which is large for a small mass spectrometer. The evacuation speed of a rotary pump is determined so that the product of the cross-sectional opening area of the desolvation tube and the pressure in the first intermediate vacuum chamber falls within a range of 15 to 40 mm2·Pa. This can ensure high detection sensitivity and reduce clogging of the desolvation tube due to droplets. Since the pressure in the first intermediate vacuum chamber does not need to be increased more than necessary, a small rotary pump having a small evacuation speed can be used.